It uses two batteries, suppose it use right one first then the left one. If you use 2nd one a long time, will the right one dead due to uncharged?
40242
It uses them both at the same time, they both go down together. Left 90% Right 89%, Left 85% Right 84% etc.
40243
The battery will be dead until you charge it, but the grip takes power from both batteries at the same time, so you wouldn't have a situation where one is dead and the other is not unless there was something wrong with the battery.
1810468
Yes it uses both batteries in series. Battery life is only 10 - 15 min if used continuously. Twice as bright, half as long
395237
I think it would possibly overcharge which would decrease the battery life. I charged it once and it has held a good charge for many months but I don't use it much.
1014531
It ok to do either one , the battery it self has a limited number of charges. I keep mines charged haven't had any problems with it.
752092
They do not function simultaneously. The camera operates off of the battery on the right. Once it is depleted, the battery on the left takes over. In order to get maximum life out of my batteries, I rotate them through the right slot. When one is fully depleted, it is charged and then is installed on the left. I hope this helps.
2091670
If the unit is good, no. If the unit is bad, it will not turn off until the batteries are drained (or not turn on at all). As I posted above, you have a 50-50 chance of getting a good unit. If you do decide to buy this unit, ALWAYS buy a NEW unit, not a used one.
95611
As far as we could tell, yes. The unit never fully charged when it was being used and charged at the same time, but the level of the battery did not go down, either. And it makes sense to us that it would not fully charge since using the unit was depleting the battery.
1684784
My friend has two of them and soand they are constantly being used, however they both did the same thing at one time or another, just after warranty ended LOL we took ours to batteries plus and they put a new battery pack in them after testing. So you might want to try that option!
447772
I have already charged the original Sony battery without problems. I am using the two replacement batteries without problems, as well. Of course I cannot guarantee that there will not be problems in the future. I hope not.
1294416
If I remember the end turns red. The battery will last one charge and then you need to charge it totally. ;-(
114056
Both ,Jonathan. The first one was replaced, and I was offered my money returned. I elected to alsopurchase a new battery from another company, and am using that one currently.
233642
First use NEW batteries. I thought my so-called NEW batteries were fresh and up to charge. They were not! Get a battery tester. Once I had batteries that had a full charge It started without having to do it manually. I do not manually do it any different than the other six answers in any major aspect. I had to start it manually until I realized that I had new batteries that did not have a full charge. Now it works fine without having to resort to manual operation.
1395130
We always bring a second one just in case. The charge on the battery lasts us for weeks but it always seems to die right when we want to use it so having a second battery is a necessity for us.
114059
Both ,Jonathan. The first one was replaced, and I was offered my money returned. I elected to also purchase a new battery from another company, and am using that one currently.
1677619
If the item is new and its not charging its because you installed the batteries incorrectly. On other hand if you had this item for a couple of months then it seems the batteries are dead because they die out not long after use. No replacement batteries sold by manufacturer.
1403101
I can only answer for the one that I own. I can plug it in and it runs just fine, especially when battery is low. If your battery is completely dead, with no chance of ever charging again, it probably has a short and it, theoretically, will NOT work when plugged in either due to the shorted battery. I hope somewhere in what I said you find the answer that you were looking for.
2170143
I bought the first one 2 years ago, so far the battery is working well. My brother charges it once a month and uses it every other day! Not yet need change the battery, but I guess when ist is gone, the only way is to replace to a new one, after all, it is only 20 dollers after sale.